let obj = {
  name: "coderqian",
  gender: "男",
};
for (let i in obj) {
  console.log(obj[i]);
}
for (let i of Object.keys(obj)) {
  console.log(obj[i]);
}
for (let i of Object.values(obj)) {
  console.log(i);
}
for (let [key, val] of Object.entries(obj)) {
  console.log(val);
}
console.log(Object.keys(obj));
console.log(Object.values(obj));
console.log(Object.entries(obj));
